Home / 307,939.40-461,678.70-167,856.20

Finding the Fourth Proportional to 307,939.40, 461,678.70 and 167,856.20

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Solution

The fourth proportional to 307,939.40, 461,678.70 and 167,856.20 is: 251,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,939.40 : 461,678.70 = 167,856.20 : x
  2. Step 2: Convert to fraction form
    307,939.40/461,678.70 = 167,856.20/x
  3. Step 3: Cross multiply
    307,939.40x = 461,678.70 × 167,856.20
  4. Step 4: Simplify right side
    307,939.40x = 77,495,632,202.94
  5. Step 5: Solve for x
    x = 77,495,632,202.94/307,939.40
  6. Step 6: Final answer
    x = 251,658.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.